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Development and first results of a dedicated chronic total occlusion programme
H W van der Werf1, P J Vlaar1,2, P van der Harst1
1Department of Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands.
Summary
A new chronic total occlusion (CTO) program in a tertiary center achieved excellent outcomes. The program successfully treated complex CTO lesions with high success rates and minimal complications, comparable to established centers.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Medicine
Background:
- Percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) is complex and carries risks.
- Developing CTO programs require regular quality analysis for centers with less experience.
Purpose of the Study:
- To describe the development and initial outcomes of a dedicated CTO program.
- To analyze results from the first three years of the program at a high-volume PCI center.
- To discuss strategies used in developing the CTO program.
Main Methods:
- Analysis of 179 consecutive patients undergoing 187 CTO procedures over three years.
- Assessment of CTO lesion complexity using the Japanese Multicentre CTO Registry (J-CTO) score.
- Application of the antegrade wire escalation technique in most cases.
Main Results:
- CTO lesion complexity increased over the study period (J-CTO score from 1.3 to 2.1).
- Technical success rate was 78.5% for single CTOs and 80.2% for all procedures.
- Excellent survival and revascularization rates at 30 days and 1 year, with low complication rates (1 MI, 2 tamponades).
Conclusions:
- A dedicated CTO program can achieve procedural and clinical outcomes comparable to established centers.
- Implementation of up-to-date techniques and strategies is key to success.
- The program demonstrated safety and efficacy in treating complex CTOs.
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